Risk modules
Exposures and hazard characterisations are compared in risk metrics. If both exposure and hazard characterisation are characterised by a single value, the risk metric (e.g. a traditional risk characterisation ratio (hazard/exposure), hazard quotient or (exposure/hazard)) can be calculated using module Single value risks. Module Risks allows for probabilistic risk calculations. In both cases a threshold can be specified to assist in interpretation. The threshold value should be chosen in relation to the assessment factors used in the hazard characterisation, e.g. a threshold MOE=100 (of HI=0.01) is often used if no assessment factors have been used, but a threshold 1 would be appropriate if assessment factors have already been used to address relevant uncertainties.